London Killings: I Learned Magic at Killer Organization

[Science fiction + dark growth + revenge + system (real) + brain burning] When I was sixteen, I killed my first man with my own hands in a dark alley in London. The next day, I was picked up by a killer organization. They called me the "chosen one" and gave me a badge, telling me: here, killing is the key to survival. I thought this was just an ordinary killer organization. Until I discovered that there was an AI calling itself "Guardian" living in my mind - it could take over my body, control my arcana, and tamper with my memory. It said: "I am humanity's last trump card." But it added: "Humanity has already died once." I began to trace my father's disappearance, only to find that I was not the only "child" he left behind. Everyone who survived had an "anchor" buried by him - including me. Three major families, five forces, and twenty-two Major Arcana cards, each one points to a truth: I was not chosen. I'm just the one who survives. Some people want to use me to restart the war, some want to use me to create heaven, some want to destroy this world, and some want to protect it. And I just want to know - who is my father? ——Before dawn comes, everyone must make their choice